Figure 1.

Appearances and thickness of Sac/EGF-HF (a) Macroscopic Appearances of Sac/EGF-HF (b) Microscopic Appearances of Sac/EGF-HF (c) Thickness of Sac/EGF-HF (a) The size of Sac/EGF-HF and Sac-HF was approximately in 1 cm × 1 cm (b) Sac/EGF-HF and Sac-HF were placed on an aluminum stub and coating it with platinum coater. The surface of HFs was analyzed by the SEM with × 300 (50 μm) (c) The thickness of Sac/EGF-HF and Sac-HF (1 cm × 1 cm) was measured by using a dial thickness gauge. Each value represents the mean ± SEM of three experiments. *P < 0.05, compared to Sac-HF. Sca/EGF-HF: Sacran/epidermal growth factor-hydrogel film